[INFO] cloning repository https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mersinvald/rust-vs-haskell-special-olimpiade" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a78ecf972533a8a5b47234fd8bf5631dd63c0cd3
[INFO] testing mersinvald/rust-vs-haskell-special-olimpiade against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] finished tweaking git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] tweaked toml for git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4029ecd633b4e93be01eb13f6d3fc6108c9cfd507d5384bb4bc7a30f741bbe51
[INFO] running `Command { std: "docker" "start" "-a" "4029ecd633b4e93be01eb13f6d3fc6108c9cfd507d5384bb4bc7a30f741bbe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4029ecd633b4e93be01eb13f6d3fc6108c9cfd507d5384bb4bc7a30f741bbe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4029ecd633b4e93be01eb13f6d3fc6108c9cfd507d5384bb4bc7a30f741bbe51", kill_on_drop: false }`
[INFO] [stdout] 4029ecd633b4e93be01eb13f6d3fc6108c9cfd507d5384bb4bc7a30f741bbe51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 125bb71a7f9cfd2a4b2cc2def5077bc9f0adba2e568b68be3daa5c0988d17f31
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "125bb71a7f9cfd2a4b2cc2def5077bc9f0adba2e568b68be3daa5c0988d17f31", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-vs-haskell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stdout]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "125bb71a7f9cfd2a4b2cc2def5077bc9f0adba2e568b68be3daa5c0988d17f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "125bb71a7f9cfd2a4b2cc2def5077bc9f0adba2e568b68be3daa5c0988d17f31", kill_on_drop: false }`
[INFO] [stdout] 125bb71a7f9cfd2a4b2cc2def5077bc9f0adba2e568b68be3daa5c0988d17f31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54baf76e3f0a7bd74af1ce9df7655c9ea27d19f1b8bd34bcd89f133a6f847ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f54baf76e3f0a7bd74af1ce9df7655c9ea27d19f1b8bd34bcd89f133a6f847ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-vs-haskell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stdout]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "f54baf76e3f0a7bd74af1ce9df7655c9ea27d19f1b8bd34bcd89f133a6f847ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54baf76e3f0a7bd74af1ce9df7655c9ea27d19f1b8bd34bcd89f133a6f847ac", kill_on_drop: false }`
[INFO] [stdout] f54baf76e3f0a7bd74af1ce9df7655c9ea27d19f1b8bd34bcd89f133a6f847ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b89db7a59f2bac2bde42240abd6bfa9297d68e70dfb09dde500acfde60917ea0
[INFO] running `Command { std: "docker" "start" "-a" "b89db7a59f2bac2bde42240abd6bfa9297d68e70dfb09dde500acfde60917ea0", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:90:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-vs-haskell` (bin "rust-vs-haskell" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_vs_haskell-bb5ed21f9855b0d9)
[INFO] running `Command { std: "docker" "inspect" "b89db7a59f2bac2bde42240abd6bfa9297d68e70dfb09dde500acfde60917ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89db7a59f2bac2bde42240abd6bfa9297d68e70dfb09dde500acfde60917ea0", kill_on_drop: false }`
[INFO] [stdout] b89db7a59f2bac2bde42240abd6bfa9297d68e70dfb09dde500acfde60917ea0